    u]
    (if (from-master? slack res)
      (do
-       (some-> user redis/add-reviewer)
+       (some-> u slack/parse-user redis/add-reviewer)
        (map->Payload {:type :message
                       :user user
                       :channel channel

                      me " fyi                           : メモ一覧を表示\n"
                      me " set-fyi <title> <body>        : <title> <body>をメモ\n"
                      me " del-fyi <title>               : <title>を削除\n"
                      me " <S-Expression>                : <S-Expression>を評価\n"
                      "------------------ 管理者限定機能 ------------------\n"
                      me " add-allowed-channel <channel> : <channel>を監視対象から外す\n"

   u]
   (if (from-master? slack res)
     (do
       (some-> u slack/parse-user redis/rm-reviewer)
       (map->Payload {:type :message
                      :user user
                      :channel channel
